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[RFC,v3,1/3] linux-headers/asm-powerpc/kvm.h: Add HASHKEYR and HASHPKEYR in headers

Message ID 20220713165458.58807-2-victor.colombo@eldorado.org.br
State New
Headers show
Series Implement Power ISA 3.1B hash insns | expand

Commit Message

Víctor Colombo July 13, 2022, 4:54 p.m. UTC 
Linux KVM currently does not export these registers. Create
placeholders for them to allow implementing hashchk(p) and
hashst(p) instructions from PowerISA 3.1B.

Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
---
 linux-headers/asm-powerpc/kvm.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/linux-headers/asm-powerpc/kvm.h b/linux-headers/asm-powerpc/kvm.h
index 9f18fa090f..4ae4718143 100644
--- a/linux-headers/asm-powerpc/kvm.h
+++ b/linux-headers/asm-powerpc/kvm.h
@@ -646,6 +646,9 @@  struct kvm_ppc_cpu_char {
 #define KVM_REG_PPC_SIER3	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc3)
 #define KVM_REG_PPC_DAWR1	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc4)
 #define KVM_REG_PPC_DAWRX1	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xc5)
+/* FIXME: KVM hasn't exposed these registers yet */
+#define KVM_REG_PPC_HASHKEYR    (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x00)
+#define KVM_REG_PPC_HASHPKEYR   (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x00)
 
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs